Description

The purpose of Research Project RP1627 is to evaluate the effectiveness of 30% Advanced Energy Design Guidelines (AEDGs) for K-12 schools and small office buildings, determine the factors common to well and poorly performing buildings, and provide recommendations for how future AEDG can be made more effective. To determine the effectiveness of the 30% ASHRAE AEDG, Group14 collected utility data and developed weather-normalized Energy Utilization Indices (EUIs; site energy use per unit area per year) for a sample of small office and K-12 school buildings. These results are compared to the modeled ASHRAE Standard 90.1-1999 Baseline and 30% Savings EUIs from the AEDG Technical Support Documents. Small office buildings constructed per AEDG achieved an average 34% site energy EUI savings compared to average ASHRAE 90.1-1999 modeled code EUI. Average EUI savings of AEDG schools averaged 52% of the ASHRAE 90.1 AEDG baseline; however, non-AEDG schools averaged 34% EUI savings. On a source energy basis, schools with electric heating systems, such as heat pumps, produced minimal energy savings relative to schools constructed to code. Factors common to well performing buildings include an integrated design approach as outlined in the AEDG, good daylighting design, and an “Environmental Ethic” within the design team and the O&M personnel maintaining the building. Factors common to poorly performing AEDG buildings include failure to incorporate all required AEDG strategies, ineffectively applied AEDG strategies, and general design and commissioning issues. Recommendations include using a source energy basis for developing AEDG requirements, development of a digital performance estimating tool based on required AEDG strategies, including ability to stimate potential savings for each AEDG strategy, and clarifying requirements and strategy descriptions for selected AEDG strategies.

Citation: 2016 Annual Conference, St. Louis, MO, Conference Papers

Product Details

Published:

2016

Number of Pages:

8

Units of Measure:

Dual

File Size:

1 file , 830 KB

Product Code(s):

D-ST-16-C050